Glossary
|
The terms and definitions included
in this glossary were taken from "ASHRAE Terminology of Heating, Ventilation,
Air Conditioning & Refrigeration".
To access the complete glossary please
visit ASHRAE's Bookstore.
|
|
You can always search for terms. |
|
Submit Term |
|
| W |
| Pages: 1 2 3 » |
| wall area (gross) |
for exterior walls
enclosing a heated or cooled space as measured on the exterior, the opaque wall
including between floor spandrels, peripheral edges of flooring, and window
areas including sash and door areas, but excluding vents, grilles, and pipes. wall plate cover attached to an outlet
box, or directly to the wall to which a thermostat is attached. It may contain
terminals to which circuit wiring is attached |
| | |
| wall section | cross section of wall, or
a drawing of it, arranged to reveal thermal and moisture migration
characteristics. |
| | |
| wall sleeve |
opening in a wall
having a shroud insert to accept the chassis of an air-conditioning unit. |
| | |
| wall units (heat) (either of two major t |
1. electrical wiring
embedded in glass or ceramic tile to radiate heat. 2. fixture recessed into a
wall deep enough to enclose resistance coilsand sometimes fans. Note: This term may apply also to gas
heaters |
| | |
| warming room (food) |
room designed to
warm foodstuffs coming out of a cold room and thus avoid surface condensation
on produce. |
| | |
| warming up allowance | addition to the capacity
of a heating system (as calculated for heat loss) to provide quick warmup in
the morning |
| | |
| watch dog timer |
1. electronic internal timer which will generate
a priority interrupt unless periodically recycled by a computer. It is used to
detect program stall or hardware failure conditions.
2. time delay circuit which is closed when a
computer system operates normally; when the computer system goes off‑line, the
circuit will begin a time delay and then open the circuit of which it is a
part. |
| | |
| water |
1. transparent, odorless, tasteless liquid; a
compound of hydrogen and oxygen (H2O), containing 11.188% hydrogen
and 88.812% oxygen by mass; freezing at 32°F (0°C); boiling near 212°F (100°C).
2. secondary coolant used in indirect
refrigerating systems above 32°F (0°C). |
| | |
| water column (wc) | tubular column located at
the steam and water space of a boiler to which protective devices, such as gage
cocks, water gage, and level alarms are attached |
| | |
| water contaminant | substance introduced into
potable water thus creating a health hazard. Compare water pollutant |
| | |
|
|
Resources 
English RSS
